Characteristics of Extreme Precipitation in Crimea

V. V. Efimov*, A. E. Anisimov, O. I. Komarovskaya

Marine Hydrophysical Institute of RAS, Sevastopol, Russia

* e-mail: vefim38@mail.ru

Abstract

The paper considers the statistical characteristics of extreme precipitation according to long-term (75 years or more) measurements at 5 hydrometeorological stations in Crimea. Quantitative characteristics of the long-term variability of precipitation, the frequency of dry and wet periods, and the interannual variability of extreme precipitation are given. Cumulative distribution functions of extreme precipitation and their approximations based on generalized distributions of extreme values (GEV) are constructed. Both long-term averages and extreme precipitation values take its maxima at the Ai-Petri weather station. This station also has the longest wet periods (2.73 days) and the most intense daily precipitation (6.85 mm/day). The coastal stations of Kerch, Sevastopol and Feodosiya have the longest average duration of dry periods (up to 8 days in Feodosiya), and the total amount of precipitation in Simferopol is greater than that in coastal cities. The analysis of extreme precipitation confirmed that the most intense extreme precipitation is observed in the summer period on Ai-Petri (165 mm/day for a return period of 50 years), as well as in Kerch and Feodosiya. Extreme precipitation in Simferopol and Sevastopol is two times weaker than that on Ai-Petri.

Keywords

precipitation, Crimea, precipitation measurements, statistical characteristics, return period, return values

Acknowledgments

The study was carried out under state assignment no. 0827-2021-0002 “Fundamental studies of the interaction processes in the ocean – atmosphere system conditioning the regional spatial-temporal variability of natural environment and climate”.

For citation

Efimov, V.V., Anisimov, A.E. and Komarovskaya, O.I., 2022. Characteristics of Extreme Precipitation in Crimea. Ecological Safety of Coastal and Shelf Zones of Sea, (2), pp. 6–18.

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